Shop Power Meters

- AXS enabled for easy monitoring and firmware upgrades - Bluetooth Low Energy and ANT+ compatible - Power readings are accurate within +/-1.5% and aren't affected by climate conditions during a ride - Power balance measures left and right legs separately - Uses a common CR2032 battery that last for 200 riding hours and changes without tools - Power-upgrade compatible with the following RED and Force eTap AXS cranksets: RED 1x: 36T-46T, Force 1x: 36T-46T, Force 2x: 33/46, 35/48 - Bolt Circle Diameter (BCD): 107 BCD - Power Meter Type: ANT USB

In certain disciplines, the single-ring drivetrain reigns supreme. Championing simplicity, strength and durability, the SRAM RED 1 AXS power meter meets the demands of triathletes, time trialists and cyclocross racers. The power meter features improved aerodynamics thanks to direct mount aero chainrings with fully integrated power, and the tighter gearing range is perfect for racing and flatter terrains. - Single-ring drivetrain simplifies functionality - 48 and 50t variants have fully integrated power into a direct mount aero chainring - 36-46t variants have spider-based power - Chainrings can be easily changed without requiring recalibration of the power meter - Power readings are accurate within +/-1.5% and aren't affected by climate conditions during a ride - SRAM X-SYNC wide-tooth, narrow-tooth chainring technology provides maximum chain control - Laser-etched chainring finish is more durable - DUB bottom bracket adds durability and simplicity - Non-aero chainrings can be installed with a single tool, making gearing changes a breeze

Enjoy the ultimate advantage of freedom and adventure that Eagle provides combined with the Quarq power meter platform that delivers on accuracy and reliability. The SRAM Eagle XX1 power meter is built to pair with the SRAM Eagle drivetrains, providing a significantly quieter performance and extraordinary durability. Take it on the dirtiest, gnarliest trails while maintaining confidence in your cycling components. You came to perform; the Eagle XX1 power meter will perform with you. You are working hard, pushing yourself to new heights in some of the toughest conditions. Ride with confidence knowing that your power meter will not quit when you need it the most. Enjoy up to 200 hours of ride time in any weather or trail condition with its IPX7 waterproof rating and 10k temperature compensation; if harsh environments do not hold you back, then you need a product capable of rising to the occasion. The Eagle XX1 power meter is designed to be rough-and-tumble tough. Train harder, ride faster and unlock your ultimate potential. The Eagle XX1 power meter brings simplicity and ease-of-use to your training. With MagicZero automatic calibration, there is no need to worry about calibrating before you ride; just jump on your bike and go. The Eagle XX1 also features Bluetooth low energy and ANT+ wireless data transfer, delivering power output information directly to your cycling computer. - Speeds: 11/12 - BB Compatibility: DUB:BSA73, PF89.5, PF92, PF30 MTB73, BB30 MTB73, BSA MTB68SP - Bolt Circle Diameter (BCD): 104 BCD - Chainline: 52.0mm - BB Spindle Interface: DUB - Power Meter Type: ANT+ and BLE - Crank Arms/Chainrings not included

Run at a higher level with the Forerunner 255S smartwatch. These running smartwatches help you train and recover smarter with training status, running power, multi-band GPS and daily suggested workouts that adapt to your performance and goals. Plus, other new features—such as race widget—help you plan your race-day strategy, and morning report with HRV status reveals your overall health alongside the day ahead. And with Garmin Pay contactless payments with a supported card, it's never been easier to buy that post-workout coffee—no matter how you work out—with more than 30 activity profiles, including triathlon, cycling, swimming and more. With Forerunner 255, you can get a continuous picture of your health, from training and recovery to sleep quality and overall wellness—and with up to 12 days of battery life in smartwatch mode and up to 26 hours in GPS mode. - Case size: 41mm

Run at a higher level with the Forerunner 255 smartwatch. These running smartwatches help you train and recover smarter with training status, running power, multi-band GPS and daily suggested workouts that adapt to your performance and goals. Plus, other new features—such as race widget—help you plan your race-day strategy, and morning report with HRV status reveals your overall health alongside the day ahead. And with Garmin Pay contactless payments with a supported card, it's never been easier to buy that post-workout coffee—no matter how you work out—with more than 30 activity profiles, including triathlon, cycling, swimming and more. With Forerunner 255, you can get a continuous picture of your health, from training and recovery to sleep quality and overall wellness—and with up to 12 days of battery life in smartwatch mode and up to 26 hours in GPS mode. - Case size: 46mm

- Rugged GPS smartwatch is water-rated to 100 meters and thermal- and shock resistant with fiber-reinforced polymer case and scratch-resistant Corning Gorilla glass - Built-in sports apps to take on running, biking, swimming, strength training and more; plus, VO2 Max and other training features - Live the ultimate connected life with smart notifications and Connect IQ compatibility when paired with your compatible smartphone. - Track your adventures with the built-in 3-axis compass and barometric altimeter, plus multiple global navigation satellite systems (GPS, GLONASS and Galileo) - Understand your body better with all-day health monitoring features that track your heart rate, sleep, Pulse Ox, respiration and more (Pulse Ox not available in all countries. This device is intended to give an estimation of your activity and metrics; it is not a medical device)

Never stop cycling with Edge 1040. It's our first GPS bike computer with multi-band GNSS technology for even better coverage under dense tree cover, on remote mountain trails and even in the urban canyon. It's also packed with performance features that help you understand your strengths and weaknesses to coach you through any challenge. When paired with your compatible sensors, it can even help you manage your efforts by providing power targets throughout a course and stamina feature insights, so you know how much gas is left in the tank. And the setup is simple, so you can take it out of the box and be out riding in no time.

Lead the pack with Forerunner 955 Solar, the premium GPS running and triathlon smartwatch with Power Glass solar charging to extend battery life. The training readiness feature tells you when you're primed for a productive session—while daily suggested workouts adapt to your performance and recovery alongside the race widget, which provides training tips, course details and completion time predictions. With morning report, you can get an overview of your sleep, recovery, training and more—as well as a picture of your overall health with heart rate variability (HRV) status (This device is intended to give an estimate of your activity and metrics). On the run, new multi-band GPS and full-color, built-in maps help you navigate confidently. And with traditional buttons and a touch display, it has never been easier to tap into your training status and know whether you're training productively, peaking or strained. If you're pushing toward the podium—or to the very limits—Forerunner 955 Solar is by your side with up to 20 days of battery life with solar charging in smartwatch mode (assuming all-day wear with 3 hours per day outside in 50,000 lux conditions).

Train brilliantly with the Forerunner® 265 GPS running smartwatch. Its colorful AMOLED touchscreen display stands out while the training readiness feature — which tells you when you’re primed for a productive session — helps you crush your goals. Wake up to your morning report with HRV status to see health insights alongside an overview of sleep, recovery and training outlook (data presented is intended to be a close estimation of metrics tracked). Plan your race strategy with the race widget, which enables personalized daily suggested workouts that adapt to performance, recovery, the race you’re running and its course. Get ready to make the most of every run with wrist-based running power and multi-band GPS. And when you want to switch it up with cross training, choose from more than 30 activity profiles, including triathlons, cycling, swimming and more. Get a more complete picture of your health, not just a glimpse, from your Forerunner 265 with up to 13 days of battery life in smartwatch mode.

Train brilliantly with the Forerunner® 265 GPS running smartwatch. Its colorful AMOLED touchscreen display stands out while the training readiness feature — which tells you when you’re primed for a productive session — helps you crush your goals. Wake up to your morning report with HRV status to see health insights alongside an overview of sleep, recovery and training outlook (data presented is intended to be a close estimation of metrics tracked). Plan your race strategy with the race widget, which enables personalized daily suggested workouts that adapt to performance, recovery, the race you’re running and its course. Get ready to make the most of every run with wrist-based running power and multi-band GPS. And when you want to switch it up with cross training, choose from more than 30 activity profiles, including triathlons, cycling, swimming and more. Get a more complete picture of your health, not just a glimpse, from your Forerunner 265 with up to 13 days of battery life in smartwatch mode.

Introduce the rider you are today to the one you’ll be tomorrow. The Edge® 840 touchscreen cycling computer offers targeted adaptive coaching when used with your compatible power meter and heart rate monitor. It helps you manage your efforts by providing power targets throughout a course plus stamina insights, so you know how much gas is left in the tank. Get superior accuracy under dense tree cover or the urban canyon, thanks to multi-band GNSS technology. It features button controls that work in any environment matched with a responsive touchscreen so you can tap, pan and swipe on the fly. Whether you’re riding roads, trails, gravel or indoor, you can benefit from insights and workouts that will help you understand your strengths and weaknesses and prepare for upcoming races or personal milestones.

Introduce the rider you are today to the one you’ll be tomorrow. The Edge® 840 touchscreen cycling computer offers targeted adaptive coaching when used with your compatible power meter and heart rate monitor. It helps you manage your efforts by providing power targets throughout a course plus stamina insights, so you know how much gas is left in the tank. Get superior accuracy under dense tree cover or the urban canyon, thanks to multi-band GNSS technology. It features button controls that work in any environment matched with a responsive touchscreen so you can tap, pan and swipe on the fly. Whether you’re riding roads, trails, gravel or indoor, you can benefit from insights and workouts that will help you understand your strengths and weaknesses and prepare for upcoming races or personal milestones.

Train brilliantly with the smaller-sized Forerunner® 265S GPS running smartwatch. Its colorful AMOLED touchscreen display stands out while the training readiness feature — which tells you when you’re primed for a productive session — helps you crush your goals. Wake up to your morning report with HRV status to see health insights alongside an overview of sleep, recovery and training outlook (data presented is intended to be a close estimation of metrics tracked). Plan your race strategy with the race widget, which enables personalized daily suggested workouts that adapt to performance, recovery, the race you’re running and its course. Get ready to make the most of every run with wrist-based running power and multi-band GPS. And when you want to switch it up with cross training, choose from more than 30 activity profiles, including triathlons, cycling, swimming and more. Get a more complete picture of your health, not just a glimpse, from your Forerunner 265S with up to 15 days of battery life in smartwatch mode.

- Rugged GPS smartwatch is water-rated to 100 meters and thermal- and shock resistant with fiber-reinforced polymer case and scratch-resistant Corning Gorilla glass; designed to fit a smaller wrist - Built-in sports apps to take on running, biking, swimming, strength training and more; plus, VO2 Max and other training features - Live the ultimate connected life with smart notifications and Connect IQ compatibility when paired with your compatible smartphone. - Track your adventures with the built-in 3-axis compass and barometric altimeter, plus multiple global navigation satellite systems (GPS, GLONASS and Galileo)

Run at a higher level with the Forerunner 255S smartwatch. These running smartwatches help you train and recover smarter with training status, running power, multi-band GPS and daily suggested workouts that adapt to your performance and goals. Plus, other new features—such as race widget—help you plan your race-day strategy, and morning report with HRV status reveals your overall health alongside the day ahead. And with Garmin Pay contactless payments with a supported card, it's never been easier to buy that post-workout coffee—no matter how you work out—with more than 30 activity profiles, including triathlon, cycling, swimming and more. With Forerunner 255, you can get a continuous picture of your health, from training and recovery to sleep quality and overall wellness—and with up to 12 days of battery life in smartwatch mode and up to 26 hours in GPS mode.

Reach new goals and explore new roads with a power meter that delivers on accuracy, durability, and reliability. The DFour DUB was designed specifically for Dura-Ace R9100 chainrings. Train using a Quarq power meter without changing your drivetrain. You are working hard, pushing yourself to new heights in some of the toughest conditions. Ride with confidence knowing that your power meter will not quit when you need it the most. Enjoy up to 200 hours of ride time in any weather condition with its IPX7 waterproof rating and 10k temperature compensation; if harsh climates do not hold you back, then you need a product capable of rising to the occasion. That is exactly what the DFour DUB power meter is made for. Train harder, ride faster, and unlock your ultimate potential. The DFour DUB power meter brings simplicity and ease-of-use to your training. With MagicZero automatic calibration, there is no need to worry about calibrating before you ride; just jump on your bike and go. DFour DUB features Bluetooth low energy and ANT+ wireless data transfer, delivering power output information directly to your cycling computer. Features - Bluetooth low-energy technology and ANT+ wireless data transfer - MagicZero - automatically checks and recalibrates your power meter as you ride – no need to manually calibrate - AxCad - no cadence magnet required - 10K Temperature Compensation - Battery - CR2032, 200-hour battery life, change without tools - OmniCal - swap chainrings without affecting accuracy - 2-year warranty - IPX7 waterproof rating - Accuracy - within 1.5%, measuring both legs

Power every ride. We've taken the reliability, elegance, and features of Quarq's legendary crank-based power meter and dropped the barrier to entry once again. This new power meter platform is entirely contained within the DUB spindle for clean integration that fits more bikes than ever. It's invisible technology that adds minimal weight and will help you get to the finish line faster, and it can be used to upgrade any eTap AXS bike. - An elegant, integrated design - DUB-PWR spindle-based unit measures left-side power to calculate total watts - Proven Quarq reliability and accuracy - Long battery life (400+ hours) to power a season of rides - User-replaceable lithium AAA battery - DUB bottom bracket adds durability and simplicity - Waterproof (IPX7 waterproof to 1 meter for 30 minutes) - Lightweight (less than 40g heavier than standard crankset) - Simple and affordable power meter upgrade option - Right Arm/BB/Spider/Chainrings NOT INCLUDED

Introduce the rider you are today to the one you’ll be tomorrow. The Edge® 540 Solar cycling computer offers targeted adaptive coaching when used with your compatible power meter and heart rate monitor. It helps you manage your efforts by providing power targets throughout a course plus stamina insights, so you know how much gas is left in the tank. Ride longer with solar charging, and get superior positional accuracy under dense tree cover or the urban canyon, thanks to multi-band GNSS technology. It features button controls that work in any conditions. Whether you’re riding roads, trails, gravel or indoor, you can benefit from insights and workouts that will help you understand your strengths and weaknesses and prepare for upcoming races or personal milestones

Wires and sensors are a thing of the past! Simply mount the MSW Miniac Go GPS Computer to your handlebars and hit the dusty road. With simple two-button operation and eight functions at your fingertips, you can track distance, speed, trip time, and more while on the bike. - 1.8-inch monochrome screen with backlight displays four functions at once - Odometer: trip, total - Speedometer: current, average, maximum - Time: current, trip - Also displays calories burned - microUSB data cable included for charging - Up to 10-hour continuous run time - Water resistant

The Lezyne Macro Plus GPS is the perfect device for cyclists looking for a GPS bike computer that covers all essential functions. It includes an optional horizontal orientation, a water resistant micro-USB port, and enhanced styling. In addition to its full GPS recording capabilities, it fully ties in with our GPS platform when paired with our Lezyne GPS Ally phone app. When paired, the device offers full turn-by-turn navigation, phone notifications, Lezyne Track (live tracking), Strava Live Segments, training integration, and device customization. Additionally, the Macro Plus GPS can pair with external Bluetooth sensors while offering up to 28-hours of battery runtime. The device is also Smart Connect enabled, allowing it to pair with our smart LED lights.

Power every ride. We've taken the reliability, elegance, and features of Quarq's legendary crank-based power meter and dropped the barrier to entry once again. This new power meter platform is entirely contained within the DUB spindle for clean integration that fits more bikes than ever. It's invisible technology that adds minimal weight and will help you get to the finish line faster, and it can be used to upgrade any eTap AXS bike. - An elegant, integrated design - DUB-PWR spindle-based unit measures left-side power to calculate total watts - Proven Quarq reliability and accuracy - Long battery life (400+ hours) to power a season of rides - User-replaceable lithium AAA battery - DUB bottom bracket adds durability and simplicity - Waterproof (IPX7 waterproof to 1 meter for 30 minutes) - Lightweight (less than 40g heavier than standard crankset) - Simple and affordable power meter upgrade option - Right Arm/BB/Spider/Chainrings NOT INCLUDED

Each GPS unit comes with a Standard GPS Mount. Included are two sets of o-rings (two diameters), plus a backup o-ring in each size, a rubber shim and an X-Lock composite mounting bracket. The rubber shim supports the X-Lock mount which is engineered to attach at any 9° angle and still allow the computer to be mounted forward. The two super durable o-rings secure it to the bar, and the patent-pending X-Lock design will prevent the computer from being knocked out. The X-Lock securely fastens the GPS computer to the mount by pressing down at a 45° angle and rotating it forward until it "locks" into place.

Protect your Garmin Edge 820 (sold separately) with a form-fitting, silicone case and keep your mind at ease. Choose from a variety of cool colors to match your personal style.

The Sigma ROX 4.0 GPS bike computer supports bikers on bike tours with 30 functions and user-friendly controls, enabling them to focus on what is important: enjoying biking. The extra-large display reliably shows data such as altitude profile, speed, distance, and training time. The ROX 4.0 bike computer also shows navigation information and connection to an e-bike and external sensors. Use the free SIGMA RIDE app to track your current ride data and analyze them at any time on your smart phone. - The high-contrast ROX 4.0 display's dimensions and extra-large numbers make it easy to read, even during a ride - With the free SIGMA RIDE app for smart phones, the computer can be used to set individualised display views in just a few clicks – up to six screens can be configured, each with three values (the fourth value, current speed, is shown continuously on the display) - The ROX 4.0 bike computer can be positioned on the handlebars in a few easy steps –there is no need to mount cables or sensors - It uses GPS and GLONASS to determine the biker's position within seconds - A true highlight of the ROX 4.0 is the integrated air pressure sensor – it uses barometric readings to provide bikers with reliable information about altitude and to determine inclines and declines, allowing a precise recording of the track - The ROX 4.0 bike computer can be connected to the komoot app on your smart phone, allowing you to keep your smart phone in your pocket during the bike tour - Turn-by-turn instructions can be shown either as an arrow on the display or inside the Red Circle - Thanks to ANT+ and BLE, external sensors such as power meters and speed, heart, and cadence sensors can also be connected to the ROX 4.0, so those who want even more data and even greater value precision can keep an eye on all of them if they wish

The XX Eagle T-Type AXS™ Wide left crankarm with Power Meter spindle utilizes SRAM's World stage proven XX crank arm with a subtly integrated power meter to record and deliver live, accurate power readings to your head unit. We achieve this by utilizing what SRAM calls “DUB-PWR” – a unique design that elegantly houses Quarq’s reliable and accurate power measurement inside the DUB crank spindle itself. Measuring left-side power to calculate total watts, it’s subtle, lightweight, compatible with any chainring setup, and boasts unbeatable battery life. It is also compatible with the Flight Attendant system, allowing for total connectivity between all AXS™ enabled components. No-compromise, no-fuss data delivery giving you an edge over the competition. - Innovative "DUB-PWR" design allows for lightweight, subtle Quarq power integration - Compatible with RockShox Flight Attendant - +/-3% accuracy means you'll always know your true watts output - Long battery life provides 400+ hours of usage - Waterproof (IPX7 waterproof to 1 meter for 30 minutes - Right arm, Bottom bracket, Chainring and Spider NOT included

Reach new goals and explore new roads with a power meter that delivers on accuracy, durability, and reliability. The DFour DUB was designed specifically for Dura-Ace R9100 chainrings. Train using a Quarq power meter without changing your drivetrain. You are working hard, pushing yourself to new heights in some of the toughest conditions. Ride with confidence knowing that your power meter will not quit when you need it the most. Enjoy up to 200 hours of ride time in any weather condition with its IPX7 waterproof rating and 10k temperature compensation; if harsh climates do not hold you back, then you need a product capable of rising to the occasion. That is exactly what the DFour DUB power meter is made for. Train harder, ride faster, and unlock your ultimate potential. The DFour DUB power meter brings simplicity and ease-of-use to your training. With MagicZero automatic calibration, there is no need to worry about calibrating before you ride; just jump on your bike and go. DFour DUB features Bluetooth low-energy and ANT+ wireless data transfer, delivering power output information directly to your cycling computer. Features - Bluetooth low-energy technology and ANT+ wireless data transfer - MagicZero - automatically checks and recalibrates your power meter as you ride – no need to manually calibrate - AxCad - no cadence magnet required - 10K Temperature Compensation - Battery - CR2032, 200-hour battery life, change without tools - OmniCal - swap chainrings without affecting accuracy - 2-year warranty - IPX7 waterproof rating - Accuracy - within 1.5%, measuring both legs

Power every ride. We've taken the reliability, elegance, and features of Quarq's legendary crank-based power meter and dropped the barrier to entry once again. This new power meter platform is entirely contained within the DUB spindle for clean integration that fits more bikes than ever. - An elegant,integrated design - DUB-PWR spindle-based unit measures left-side power to calculate total watts - Proven Quarq reliability and accuracy - Long battery life (400+ hours) to power a season of rides - User-replaceable lithium AAA battery - DUB bottom bracket adds durability and simplicity - Waterproof (IPX7 waterproof to 1 meter for 30 minutes) - Lightweight (less than 40g heavier than standard crankset) - BB not included

Power every ride. We've taken the reliability, elegance, and features of Quarq's legendary crank-based power meter and dropped the barrier to entry once again. This new power meter platform is entirely contained within the DUB spindle for clean integration that fits more bikes than ever. - An elegant, integrated design - DUB-PWR spindle-based unit measures left-side power to calculate total watts - Proven Quarq reliability and accuracy - Long battery life (400+ hours) to power a season of rides - User-replaceable lithium AAA battery - DUB bottom bracket adds durability and simplicity - Waterproof (IPX7 waterproof to 1 meter for 30 minutes) - Lightweight (less than 40g heavier than standard crankset) - Wide chainline crankset for bikes with the widest gravel tires

- AXS enabled for easy monitoring and firmware upgrades - Fully integrated power meter into a direct mount chainring - Power readings are accurate within +/-1.5% and aren't affected by climate conditions during a ride - Power balance measures left and right legs separately - SRAM X-SYNC wide-tooth, narrow-tooth chainring technology provides maximum chain control - Laser-etched chainring finish is more durable - 8-bolt direct mount compatibility only to RED and Force eTap AXS cranks. - Speeds: 12 - Chainring material: Aluminum - Power Meter Type: ANT USB

Lead the pack with Forerunner 955, the premium GPS running and triathlon smartwatch. The training readiness feature tells you when you're primed for a productive session, while daily suggested workouts adapt to your performance and recovery alongside the race widget, which provides training tips, course details and completion time predictions. With morning report, you can get an overview of your sleep, recovery, training and more—as well as a picture of your overall health with heart rate variability (HRV) status (This device is intended to give an estimate of your activity and metrics). On the run, new multi-band GPS and full-color, built-in maps, help you navigate confidently. And with traditional buttons and a touch display, it has never been easier to tap into your training status and know whether you're training productively, peaking or strained. If you're pushing toward the podium—or to the very limits—Forerunner 955 is by your side with up to 15 days of battery life in smartwatch mode.